/* ── Reset & tokens ──────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b1120;
  --bg-alt:#0e1729;
  --surface:#162032;
  --surface-2:#1c2a3f;
  --border:#1f3050;
  --border-2:#2b4268;
  --accent:#38bdf8;
  --accent-d:#0ea5e9;
  --green:#22d3a5;
  --red:#f87171;
  --amber:#fbbf24;
  --violet:#a78bfa;
  --text:#dde7f5;
  --text-2:#7a9bbf;
  --text-3:#3d5270;
  --r:10px;
  --font:system-ui,'Segoe UI',-apple-system,sans-serif;
  --mono:'Consolas','Cascadia Code',monospace;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ── Layout helpers ──────────────────────────────────────────── */
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;display:block}
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.sh{text-align:center;margin-bottom:52px}
.sh h2{font-size:clamp(1.7rem,2.8vw,2.5rem);font-weight:800;letter-spacing:-.028em;text-wrap:balance;color:#eef4ff;margin-bottom:12px}
.sh p{color:var(--text-2);font-size:1.02rem;max-width:52ch;margin:0 auto}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .18s;border:none;line-height:1.2}
.btn-primary{background:var(--accent);color:#021527}
.btn-primary:hover{background:#7dd3fc;transform:translateY(-1px)}
.btn-cta{background:linear-gradient(135deg,#2ee6b8,#1fb98f);color:#04241c;box-shadow:0 10px 28px rgba(34,211,165,.4)}
.btn-cta:hover{background:linear-gradient(135deg,#4bf0c7,#2ee6b8);transform:translateY(-1px);box-shadow:0 12px 32px rgba(34,211,165,.5)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border-2)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:13px 28px;font-size:1rem}

/* ── Nav ─────────────────────────────────────────────────────── */
nav{position:sticky;top:0;z-index:100;background:rgba(11,17,32,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;gap:32px;max-width:1160px;margin:0 auto;padding:14px 24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1rem;letter-spacing:-.01em;color:var(--text);flex-shrink:0}
.logo-badge{height:30px;width:auto;display:block}
.nav-links{display:flex;gap:28px;list-style:none;margin-left:auto}
.nav-links a{font-size:.855rem;font-weight:500;color:var(--text-2);transition:color .18s}
.nav-links a:hover{color:var(--text)}
.nav-cta{margin-left:16px}

/* ── Language switcher ──────────────────────────────────────── */
.lang-switch{display:flex;gap:2px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:3px;margin-left:16px;flex-shrink:0}
.lang-switch a{padding:5px 9px;font-size:.72rem;font-weight:700;letter-spacing:.03em;color:var(--text-2);border-radius:6px;transition:all .15s}
.lang-switch a:hover{color:var(--text)}
.lang-switch a.active{background:var(--accent);color:#021527}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero{max-width:1160px;margin:0 auto;padding:80px 24px 72px;display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.hero-text .eyebrow{margin-bottom:18px}
.hero-text h1{font-size:clamp(2rem,3.8vw,3rem);font-weight:900;line-height:1.08;letter-spacing:-.035em;text-wrap:balance;color:#eef4ff;margin-bottom:22px}
.hero-text h1 em{font-style:normal;color:var(--accent)}
.hero-text p{font-size:1.08rem;color:var(--text-2);line-height:1.72;max-width:44ch;margin-bottom:36px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ── Hero desktop mockup ─────────────────────────────────────── */
.hero-shot-wrap{position:relative}
.hero-shot-wrap::before{content:'';position:absolute;inset:8% 4% -12%;background:radial-gradient(ellipse at center,rgba(56,189,248,.28),rgba(11,17,32,0) 65%);filter:blur(18px);z-index:0;pointer-events:none}
.hero-shot{position:relative;z-index:1;background:#060d18;border:1px solid #1a2d44;border-radius:14px;overflow:hidden;box-shadow:0 28px 72px rgba(0,0,0,.55),0 0 0 1px rgba(56,189,248,.08)}
.hero-shot-bar{background:#0c1a2c;padding:10px 14px;display:flex;align-items:center;gap:10px;border-bottom:1px solid #152238}
.hero-shot-dots{display:flex;gap:6px}
.hero-shot-dots span{width:9px;height:9px;border-radius:50%}
.hero-shot-dots span:nth-child(1){background:#f87171}
.hero-shot-dots span:nth-child(2){background:#fbbf24}
.hero-shot-dots span:nth-child(3){background:#34d399}
.hero-shot-title{font-size:.68rem;color:var(--text-3);margin:0 auto;font-family:var(--mono);letter-spacing:.02em}
.hero-shot-frame{position:relative;aspect-ratio:16/10;background:#040a14;overflow:hidden}
.hero-shot-frame img{width:100%;height:100%;object-fit:cover;object-position:center top;transform:scale(1.01)}
.hero-shot-zoomable{cursor:zoom-in}
.lightbox{position:fixed;inset:0;background:rgba(2,10,20,.88);display:flex;align-items:center;justify-content:center;padding:40px;z-index:999;opacity:0;visibility:hidden;transition:opacity .2s ease}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:100%;max-height:100%;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5);cursor:zoom-out}
.lightbox-close{position:absolute;top:20px;right:28px;color:#fff;font-size:2rem;line-height:1;cursor:pointer;background:none;border:none;opacity:.8}
.lightbox-close:hover{opacity:1}
.hero-shot-note{font-size:.72rem;color:var(--text-3);padding:9px 14px;border-top:1px solid #152238;background:#060d18}

/* ── Stats strip ─────────────────────────────────────────────── */
.stats{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats-inner{max-width:1160px;margin:0 auto;display:flex;justify-content:space-around;flex-wrap:wrap;gap:24px;padding:26px 24px;text-align:center}
.stat-num{font-size:1.75rem;font-weight:900;color:#eef4ff;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.stat-lbl{font-size:.78rem;color:var(--text-2);margin-top:3px}
.stat-div{width:1px;background:var(--border);align-self:stretch}

/* ── Features grid ───────────────────────────────────────────── */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:26px;transition:border-color .18s,opacity .48s,transform .48s;opacity:0;transform:translateY(18px)}
.feat-card.vis{opacity:1;transform:none}
.feat-card:hover{border-color:var(--border-2)}
.feat-icon{width:42px;height:42px;background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.14);border-radius:9px;display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:16px}
.feat-card h3{font-size:1rem;font-weight:700;color:#eef4ff;margin-bottom:7px}
.feat-card p{font-size:.875rem;color:var(--text-2);line-height:1.62}

/* ── Widgets grid ────────────────────────────────────────────── */
.widget-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.widget-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;opacity:0;transform:translateY(18px);transition:border-color .18s,opacity .48s,transform .48s}
.widget-card.vis{opacity:1;transform:none}
.widget-card:hover{border-color:var(--border-2)}
.widget-shot{aspect-ratio:16/10;background:#0c1a2c;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.widget-shot-placeholder{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-3)}
.widget-shot-placeholder span{font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;font-family:var(--mono)}
.widget-body{padding:22px}
.widget-num{font-family:var(--mono);font-size:.68rem;color:var(--accent);letter-spacing:.08em;margin-bottom:8px;display:block}
.widget-card h3{font-size:1rem;font-weight:700;color:#eef4ff;margin-bottom:8px}
.widget-card p{font-size:.85rem;color:var(--text-2);line-height:1.6;margin-bottom:14px}
.widget-tags{display:flex;gap:6px;flex-wrap:wrap}
.widget-note{text-align:center;font-size:.85rem;color:var(--text-2);margin:36px auto 0;max-width:56ch}
.widget-note strong{color:var(--text)}

/* ── Devices grid ────────────────────────────────────────────── */
.dev-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.dev-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:22px 18px;opacity:0;transform:translateY(16px);transition:border-color .18s,opacity .48s,transform .48s}
.dev-card.vis{opacity:1;transform:none}
.dev-card:hover{border-color:var(--border-2)}
.badge{display:inline-block;font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:3px 8px;border-radius:4px;margin-bottom:13px}
.b-ditel{background:rgba(56,189,248,.1);color:var(--accent);border:1px solid rgba(56,189,248,.18)}
.b-modbus{background:rgba(251,191,36,.09);color:var(--amber);border:1px solid rgba(251,191,36,.18)}
.dev-card h3{font-size:.95rem;font-weight:700;color:#eef4ff;margin-bottom:7px}
.dev-desc{font-size:.8rem;color:var(--text-2);margin-bottom:14px;line-height:1.52}
.var-list{display:flex;flex-direction:column;gap:5px}
.var-item{display:flex;align-items:center;gap:8px;font-size:.77rem;color:var(--text-2)}
.var-item::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--green);flex-shrink:0}

/* ── Modbus detail ───────────────────────────────────────────── */
.modbus-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.modbus-grid h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;letter-spacing:-.025em;color:#eef4ff;margin-bottom:14px;text-wrap:balance}
.modbus-grid p{color:var(--text-2);margin-bottom:24px;line-height:1.7;font-size:.95rem}
.endian-list{display:flex;flex-direction:column;gap:11px}
.endian-row{display:flex;align-items:center;gap:12px;font-size:.855rem;color:var(--text-2)}
.endian-badge{width:34px;height:34px;background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.14);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.62rem;font-weight:800;color:var(--accent);flex-shrink:0;font-family:var(--mono)}
.reg-table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.reg-table-head{padding:11px 16px;background:#060d18;border-bottom:1px solid var(--border);font-size:.65rem;font-family:var(--mono);color:var(--text-3);letter-spacing:.06em;text-transform:uppercase}
.overflow-x{overflow-x:auto}
.reg-table{width:100%;border-collapse:collapse;font-size:.77rem;font-family:var(--mono)}
.reg-table th{padding:8px 13px;text-align:left;color:var(--text-3);font-weight:600;letter-spacing:.06em;font-size:.64rem;text-transform:uppercase;border-bottom:1px solid var(--border)}
.reg-table td{padding:8px 13px;border-bottom:1px solid rgba(31,48,80,.5)}
.reg-table tr:last-child td{border-bottom:none}
.reg-table tr:hover td{background:rgba(22,32,50,.4)}
.tag{display:inline-block;font-size:.62rem;padding:2px 7px;border-radius:4px;font-weight:700}
.tag-4x{background:rgba(56,189,248,.1);color:var(--accent)}
.tag-3x{background:rgba(167,139,250,.1);color:var(--violet)}
.tag-1x{background:rgba(34,211,165,.1);color:var(--green)}

/* ── Pricing ─────────────────────────────────────────────────── */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.price-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:30px 26px;opacity:0;transform:translateY(18px);transition:opacity .48s,transform .48s}
.price-card.vis{opacity:1;transform:none}
.price-card.feat{border-color:rgba(56,189,248,.4);background:linear-gradient(155deg,rgba(56,189,248,.055),var(--surface));position:relative}
.feat-tag{position:absolute;top:-1px;right:22px;background:var(--accent);color:#021527;font-size:.64rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 11px;border-radius:0 0 8px 8px}
.price-tier{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--text-2);margin-bottom:10px}
.price-num{font-size:2.2rem;font-weight:900;color:#eef4ff;letter-spacing:-.04em;font-variant-numeric:tabular-nums;line-height:1;margin-bottom:4px}
.price-num sub{font-size:1rem;font-weight:500;color:var(--text-2);vertical-align:baseline;letter-spacing:0}
.price-consult{font-size:1.3rem;font-weight:700;color:#eef4ff;letter-spacing:-.02em;margin-bottom:4px}
.price-hint{font-size:.78rem;color:var(--text-2);margin-bottom:4px}
.price-divider{border:none;border-top:1px solid var(--border);margin:20px 0}
.price-feats{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:26px}
.price-feats li{display:flex;align-items:flex-start;gap:9px;font-size:.855rem;color:var(--text-2)}
.ck{color:var(--green);font-size:.78rem;flex-shrink:0;margin-top:2px}
.cx{color:var(--text-3);font-size:.78rem;flex-shrink:0;margin-top:2px}

/* ── CTA block ───────────────────────────────────────────────── */
.cta-block{max-width:620px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:52px 44px;text-align:center}
.cta-block h2{font-size:clamp(1.5rem,2.8vw,2.2rem);font-weight:800;letter-spacing:-.025em;text-wrap:balance;color:#eef4ff;margin-bottom:14px}
.cta-block p{color:var(--text-2);font-size:.97rem;max-width:38ch;margin:0 auto 30px;line-height:1.68}
.cta-actions{display:flex;gap:11px;justify-content:center;flex-wrap:wrap}

/* ── Footer ──────────────────────────────────────────────────── */
footer{border-top:1px solid var(--border);padding:36px 24px;background:var(--bg-alt)}
.footer-inner{max-width:1160px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px}
.footer-copy{font-size:.78rem;color:var(--text-3);margin-top:5px}
.footer-links{display:flex;gap:22px}
.footer-links a{font-size:.78rem;color:var(--text-3);transition:color .15s}
.footer-links a:hover{color:var(--text-2)}

/* ── Motion preferences ─────────────────────────────────────── */
@media(prefers-reduced-motion:reduce){
  .feat-card,.widget-card,.dev-card,.price-card{opacity:1;transform:none}
  .hero-shot-frame img{transform:none}
}

/* ── Responsive ──────────────────────────────────────────────── */
@media(max-width:960px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .widget-grid{grid-template-columns:repeat(2,1fr)}
  .dev-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}
  .modbus-grid{grid-template-columns:1fr}
  .stat-div{display:none}
}
@media(max-width:720px){
  .hero{grid-template-columns:1fr}
  .hero-shot-wrap{display:none}
  .nav-links{display:none}
  .feat-grid{grid-template-columns:1fr}
  .widget-grid{grid-template-columns:1fr}
  .dev-grid{grid-template-columns:1fr}
  .cta-block{padding:36px 24px}
}